TITLE

Superconducting thin films based on La2-xSrxCuO4

AUTHOR(S)
de Lima, O. F.; Mattson, J.; Sowers, C. H.; Brodsky, M. B.
PUB. DATE
August 1987
SOURCE
Applied Physics Letters;8/3/1987, Vol. 51 Issue 5, p369
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Superconducting films (300–400 nm thick) of La2-xSrxCuO4 have been prepared by a combined evaporation-reaction method. Amorphous films of the oxide are formed initially on sapphire substrates at deposition temperatures of 25–400 °C. Crystallized films can then be obtained with the desired tetragonal structure and show superconducting resistive transitions, with onsets between 23–28 K and zero resistivities near 4.2 K. A diamagnetic transition consistent with the onset-resistive transition is seen for different samples and a critical current density of 0.4 A/cm2 is obtained.
ACCESSION #
9823723

 

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